Frequencies for first 10,000 rows of vin_3 variable in vehicle dataset :

        vin |
character(3 |
          ) |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         40        0.40        0.40
          1 |      1,140       11.40       11.80
          2 |        417        4.17       15.97
          3 |        438        4.38       20.35
          4 |        807        8.07       28.42
          5 |         23        0.23       28.65
          6 |        195        1.95       30.60
          7 |        248        2.48       33.08
          8 |        277        2.77       35.85
          9 |        362        3.62       39.47
          A |        867        8.67       48.14
          B |        183        1.83       49.97
          C |        443        4.43       54.40
          D |        704        7.04       61.44
          E |        168        1.68       63.12
          F |         85        0.85       63.97
          G |        412        4.12       68.09
          H |        174        1.74       69.83
          J |         34        0.34       70.17
          K |        306        3.06       73.23
          L |         80        0.80       74.03
          M |        539        5.39       79.42
          N |        426        4.26       83.68
          P |        151        1.51       85.19
          R |         24        0.24       85.43
          S |         85        0.85       86.28
          T |        713        7.13       93.41
          U |        227        2.27       95.68
          V |         93        0.93       96.61
          W |        116        1.16       97.77
          X |        136        1.36       99.13
          Y |         46        0.46       99.59
          Z |         41        0.41      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016